Surgery TRIZ Cases

An external mechanism drives endoscope bending knobs via a motor to simplify manual operation.

A dynamic expandable device inflates via a fluid reservoir to form an acoustic seal within the ear canal.

Segmented optical modules allow independent replacement to resolve cost-effectiveness versus performance degradation trade-offs in multi-use endoscopes.

A tapered optical waveguide expands the observation field of view in scanning endoscopes by inclining its distal end toward the spherical lens optical axis.

A specimen retrieval pouch uses spaced guide members to direct a drawstring along its perimeter for controlled closure.

Concentric index patterns on a measurement chart allow accurate determination of angle of deviation and viewing angle to resolve assembly errors.

A handheld tongue elevator device features an ergonomic handle and measuring indicia to guide precise tissue elevation during post-surgical care.

Homogeneous nanosized calcium phosphate dispersion in a biodegradable polymer matrix overcomes brittleness and hydrophobicity to enhance osteoconduction.

A ring-shaped RFID transponder integrates into medical instruments via a recessed printed circuit board antenna.

A segmented medical implant uses fenestrated surfaces to facilitate uniform cartilage regrowth within damaged joints.

Integrating a convex lens into the endoscope tip window reduces assembly complexity and improves illumination uniformity.

Cell-cultured ECM composites resolve biocompatibility and flow restriction contradictions by depositing biosynthetic material onto decellularized grafts.

Fluorine-containing elastomer reinforced with thermal black and plate alumina maintains physical resistance after severe disinfection, preventing water leakage.

A fluorescence endoscope calculates dye densities using a matrix equation and substitutes set values for negative results to ensure accurate representation.

Embedding an RFID chip in opaque resin creates a unique identifier visible on X-rays, preventing manual falsification of object tracking.

Continuous vaginal temperature monitoring calculates amplitude variations to detect progesterone shifts and determine fertility status accurately.

An endoscope optical system uses controlled longitudinal chromatic aberration to shift focal positions for blood-vessel-enhancement observation.

A gas supply system uses a selection button to switch between automatic and manual air lines, preventing simultaneous operation.

A reversible silicone ligament reconstruction device uses a grid-shaped connecting portion for stable fixation and tissue regrowth.

Disposable cutting head with angled, spaced blades reduces reactive torque and head pressure by improving bone debris removal efficiency.

A flat reamer with blade wings featuring variable sharpness decreases from the center to the outside.

A magnesium alloy containing ytterbium, calcium, and zinc forms a fine-grained structure through micro-alloying.

A segmented speculum system expands the vaginal canal using adjustable blades to maintain dilation during pelvic exams.

Replacing mechanical rollers with optical reflection eliminates slippage errors and avoids adding indexes, enabling reliable endoscope integration.

Segmented flexible printed wiring board connects image pickup device terminals to rear prism surfaces, reducing structural complexity and assembly damage risk.

Asymmetric projecting elements reduce insertion resistance while expanding to stabilize the tip and open folds during withdrawal.

Segmented soft bladder with local quality variation creates non-spherical cavity expansion, eliminating CO2 embolism risks from gas leakage.

Automated decontamination device integrates washing, drying, and UV-C disinfection units into a single compact system.

A curved image sensor lens corrects chromatic aberration across wide wavelengths by combining lenses with distinct partial dispersion ratios.

A glucose measuring apparatus adjusts calibration timing based on user activity and signal variation to improve measurement accuracy.

Shortened neck geometry and localized porous coating preserve calcar bone while reducing impingement risks.

A polarization switching illumination apparatus shares a single light source and optical system for both observation and measurement functions.

Sequentially driving multiple illumination sections within an image pickup cycle reduces color misregistration and image blurring.

Varying foam density across a single molded body eliminates multi-material assembly, reducing manufacturing cost while maintaining insertion ease.

An intelligent biomimetic biodevice activates therapeutic particles via magnetic stimulation to support bone tissue repair.

A retractile-blade utility knife uses a pivoting blade holder and spring bias to shift between cutting and safety positions.

Diametrically opposed supply and discharge lines prevent air pockets in the everting tube drive, ensuring smooth advancement through curved colon areas.

A crosslinked polymer gel kit surrounds urinary calculus fragments and enables their magnetic removal from the body.

Conversion section scatters reflected surface acoustic waves as bulk waves to eliminate bidirectional propagation and improve observation window cleanliness.

A digital receiver calculates correlation sums across electrode pairs to select optimal connections, preventing signal distortion during movement.

A patient-adapted acetabular implant system uses preoperative imaging to create customized locking mechanisms and screw holes for precise anatomical fit.

A ductile titanium-niobium coating with silver prevents pathogen colonization while maintaining mechanical integrity during plastic deformation.

A thermal lithography method patterns biomolecules on microfluidic surfaces using a polysaccharide reactive layer and biocompatible resist.

Adjustable adapter connects diverse retractor handles to positioning devices, reducing tissue stress and improving surgical field visualization.

Nested bending pieces covered by a net-like tube reduce outer surface irregularities, improving insertability through limited spaces.

An image sensor for capsule endoscopes uses a frame puncturing unit to interrupt power supply to analog circuits at predetermined frames.

An automated weighing system determines fluid loss volume from absorbent item weights, replacing manual visual estimation with precise electronic measurement.